About N.I.S.T. Traceable Calibration

We
can provide certificates of calibration with N.I.S.T.
traceability (National Institute of Standards and Technology) on our line of stage micrometers and eyepiece
reticles, as well as for Customer-supplied stage micrometers and
reticles.

By
calibration, we mean that after the part is manufactured it is
measured with a precision piece of equipment that has itself
been calibrated with a N.I.S.T. traceable test standard. These
measurement results are then provided with the part on a
Certificate Of Calibration. The
Calibration Department is accredited to ISO/IEC 17025:2005.

PRICING
Some of the stage micrometers are
offered as standard products in a calibrated version with all
division lines calibrated, so please refer to the individual part number for pricing. For all others,
and for Customer-supplied products, the cost is $39.50 per point, 10 point ($395.00) minimum.

CALIBRATION POINTS
A "point" is
defined as one measurable dimension. For example, if you had a 1mm
scale with sub-divisions every 0.1mm, and you wanted every
division line to be calibrated, it would consist of 10
calibration points (0 ~ 0.1mm, 0 ~ 0.2mm, etc.). You could also specify different points. For example 0.1mm ~ 0.2mm or 0.1mm ~ 0.8mm, etc. If specific points are not requested the calibration will be spread evenly across the scale. Circle/dot/aperture style features count as two points.

CERTIFICATE OF CALIBRATION
After calibration, the stage micrometer or reticle is shipped
with a Certificate of Calibration showing the actual dimensions
measured, calibration equipment used, calibration equipment
accuracy, environmental conditions, N.I.S.T. traceable test number and certificate serial no. This
serial no. is also engraved into the glass of the stage
micrometer. The certificate will state that the Calibration
Department is accredited to ISO/IEC 17025:2005, and meets the
General requirements for the competence of testing and
calibration laboratories.

ACCURACY
The manufacturing accuracy specification of the chrome pattern on our micrometers is +/- 0.0002" (+/- 0.005mm)
end-to-end. If calibration is purchased, the calibration
equipment used has an overall accuracy of +/- 0.00002" (+/- 0.0005mm)
with a total estimated uncertainty of +/- 0.00003" (+/- 0.0007mm).